Carbureter



H. P. THATCHER AND J. W. HANLEY.

CARBURETER.

APPLICATIQN FILED APR. 17. 191?.

Patented Oct. 5, 1925 lave-mien;

arrsn s'r;

HARRY PHILIP THA'ICHER, or BEVERLY,

AND JOSEPH W. HANLEY, 0F FALMOUTH,

MASSACHUSETT$ GARBURETER. I

Application filed April 17,

To all whom it may conccrn: 7

Be it known that we, HARRY P. Tna'rcrnm and Josnrrr VJ. 'HANLEY, citizens oi the United States, residing. respectively, atlieverly, in the'county of Essex and State of Massachusetts, and Fahnoutlnin the county of Barnstahle and State oi"lvhissachusetts, have invented certain new and useful linprovements in arbureters, of which the following is a specification.

()ur invention relates to carbureters for internal combustion engines and the object thereoi is to providean improved carbm'c'ter that is particularly adapted to use the heavier hydro-carbons such as kerosene.

In-accordance with our invention the carbureter is provided with a chamber or retort that is preferably a tube extending through the exhaust manifold of the engine to which the carbnreter is applied, said chamber ha ving an outlet connected with the intake of the engine, cylinder or cylinders and an in let connected with a supply of relatively h a :y hydro-carbon such as kerosene as well as an an inlet. all constructed and arranged so that hoth kerosene and air in delinite and regulated proportions such as to complete the explosive mixture are drawn into said chamber by the suction strokes oi" the engine pistons, or piston. and pass through said chamber into the cylinder or cylinders. Preferably the two inlets oi the exhaust heated chamber are arranged at one end of the chamber and the outlet of said chamber at the opposite end of the latter so that the kerosene is thoroughly vaporized and mixed with the air and both are heated in passing through the chamber to the outlet of the latter. ()ar improved carbureter-ma v be used with another carburetor for a lighter h vdro-' .carhon such as gasolcnm said latter carbu- Specification of Letters Patent.

. holding a supply of relatively heavy hydi Patenl ed 5, 1

1.917. Serial No. 162,639.

Figure 1 is an ele- 'atiou or the upper por- 5 tron of an internal combustion motor equipped with a. carbureter embodying our invention.

lig. 2 is a. central lon itudinal sectional view of the exhaust manifold of the en ine shown in Fig. l. h

Fig. 3 is an enlarged of Fig. 2. i H

in Fig. l of the drawings is shown the upper portion of a four uvlinder internal combustion engine, 5 representing the ere haust manifold thereof which is detachahlv fastened to the cylinders bv the usual clamps 6. i

The intake manifold of the engine is shown at T, the upper end thereof connectmg as usual with the cylinders and the lower end with a carburetcr Fl for gasolene.

A throttle 5) is provided as usual iirintake 7 just above the carlmreter 8. llxtendiug through the exhaust manifold 5 is a U-shaped length of pipe 14') which (on section on line 3-3 stitutes the mixing and vaporizing chamber referred to above. (hie end of chamber I0 is connected by a pipe 11 with the intake manifold T at a point just above the thro 9 while the opposite end of said chamber connected by a pipe 12 with a reservoir carbon such as kerosene. At its junction chamber 10 the pipe l2 is provided vi needle valve 1 and at a point hot-ween needle valve and res rvoir l3 v 'it-h a cook 15. Adjacent valve 14. the chamirei i0 is vided with an air inlet port 16 controlled l an inwa' fly opening check valve 1? who stem is threaded and carries an adjn; able nut 19 thrcmghwhich a spi y; 20 ac to yicldingly hold said valve cl seat. I v

lluring each Suction stroke of the en air is drawn into chamber 10 past va-- and at the same time kerosene is drawn said chamher past needle valve Li and m with the air entering at inlet 16. The new valve 1-1 and the discharge orifice. 21. of said valve are constructed as to cause lmrosene to be oroken up or atomized discharges into chamher 10 thus permit ,i J Tl 3. kerosene is heated dining, its

at the four points Where the chamber extends through the walls of the exhaust manifold.

is started with Theengine, when cold,

9 open and stop cock 15 closed and throttle 'is run on gasolene from carburetor 8 until.

the manifold o. and chamber 10 have become heated to the proper degree after which valve 15' is, opened and throttle 9 closed.

The proper relative proportions of air and kerosene entering chamber 10 is established by adjustment of valve 14: and nut 19. The manifold?) together with the vaporizing and 'mixing chamber '10 and the parts connected with other than the engine and intake manifold, are herein shown as embodied in an attachment for :llr engine of a well. known make, the only alteration in the construction of the engine required to apply the attachment being" to substitute the manifold 5 for the original exhaust mani fold of the engine and to make the cormection between pipe 11 and intake manifold 7. An internal combustion engine provided with a carburetor constructedin accordance with our invention and using kerosene is more efiicient and economilal than when gasolene is used and, moreover, when running under proper conditions of adjustment of this attachment the combustion seems to he nearly perfect as there is practically no ivith ()ll inlet; a second pipe for connecting the signatures.

trace of carbon observable in the cylinders even aiter several weeks use of the motor.

In the pipe 11 is provided a manually operated valve 23 which is closed while the engine 'is being operated from the gasolene supply and left open while being operated from the kerosenesupply.

What we claim is:-

In combination, a main reservoir for holding a supply 01'' heavy hydro-carbon fuel oil such as kerosene; an exhaust manifold to connect with the exhaust ports of an internal combustion engine; an unobstructed pipe extending through said exhaust manitold heated by the exhaust gasespassmg through the latter; a definitely restricted air inlet near one end of said pipe; an oil inlet at the same end of said pipe connected said reservoir; a valve controlling said opposite end of said first pipe with the intake of the engine, anda manually operated valve in said second pipe, said two-inlets supplying air and oil in final proportions to complete the explosive mixture Within said first mentioned pipe, and said manually operated valve controlling the delivery of the mixture to the engine without varying: the proportions of oil and air.

In testimony whereof we have afiixed our HARRY PHILIP THATCHER. J USEPH N. HANLEY.

\Vitnesses l-lEnsnY \V. Hones, Geo. W. JoNEs. 

